package demo9;

public class MyStringTest {
    public static void main(String[] args) {
        String s1="hello java";
        String s2="hello java";

        if (s1.equals(s2)){
            String news1 = s1.replace(" ","");
            System.out.println(news1);

            String newS1Res= news1.replace("java","word");
            System.out.println(newS1Res);
        }
    }
}
